Digital currency wolf team
Shenzhen Yuedong Culture Communication Co., Ltd., within the province, the current registered capital of the enterprise is general
view more information of Shenzhen Yuedong Culture Communication Co., Ltd. through online enterprise credit
select the find revenue dialog box,
find the specific revenue level.
Radio data system
wireless digital broadcasting is a kind of equipment that transmits broadcasting by means of wireless transmission. It has the characteristics of no need of pole stringing, wide coverage, unlimited expansion, convenient installation and maintenance, low investment and beautiful sound quality. Therefore, wireless digital broadcasting has incomparable advantages over traditional cable broadcasting
the intelligent FM broadcasting system consists of intelligent broadcasting control system, digital audio workstation and FM transmitting and receiving system. Based on the guiding ideology of "advanced and practical", the scheme is designed according to the most advanced configuration of radio broadcasting in China, and its index has reached the level of professional radio stations at prefecture level in China
extended materials
main functions -
with the advantages of high-quality brand and reasonable price, advanced equipment, elegant style, beautiful sound quality, complete functions and excellent performance, this series of procts will bring you into a new realm of public broadcasting automation and let you spend your time in relaxed and wonderful music, And the music broadcasted by this system is mainly lyric style, relaxed and wonderful
it integrates leisure, entertainment, fire fighting and emergency broadcasting, and is mainly used for playing background music and emergency broadcasting in case of emergency. Digital intelligent broadcasting system has its own advantages; High quality, economy, stability and practicality; It can be widely used in instrial and mining enterprise management, instrial and mining enterprise meeting, notice broadcast and emergency broadcast in case of emergency
RDS not only makes radio automatic and high-end, but also plays a role in urban traffic management, and its application field is still expanding.
the literal explanation from the Internet is: RDS is a special radio broadcast developed by BBC, which is called "radio data system". It uses subcarriers to transmit radio station name, program type, program content and other information in digital form. Through the tuner with RDS function, these digital signals can be recognized and displayed in characters on the display screen
in fact, RDS is not as simple as you think. We listen to the radio, there are two main transmission modes, which are commonly known as FM and am. FM has the best sound quality, and it is stereo. But it has a fatal weakness, that is, the transmission distance is too short, which is the strength of am. Of course, when we are fixed in a certain place, it is not a big problem, but when we want to go to another place, such as from Guangzhou to Shenzhen, the Pearl River economic station may not be able to receive it, or the transmission frequency has changed
what should we do? Is there any way to combine the advantages of FM and am? Smart Europeans then developed RDS radio systems. As for the online explanation, it only involves the rudiments of RDS. In other words, it can display the station name, program type, program content and other information. It only plays about 10% of the functions of RDS
the essence of RDS broadcasting is its AF and Ta functions! Usually, if a radio station wants to expand its coverage, it will certainly transmit multiple frequencies. For example, a radio station has 107.5 and 100.8mhz frequencies. When you drive to listen to 100.8, and go to a certain place, the signal suddenly becomes worse. You have two choices: one is to listen to it, almost no matter; the other is to listen to it; Second, manually adjust the frequency to 107.5mhz, try to see clearly (driving is dangerous)
at this time, if your car radio has RDS function, it will be much better! Turn on the AF function. If the signal level of the radio station you are listening to is very good, it will not work. When the signal is lower than a certain level, the AF function will automatically search for other transmitting frequencies of the current radio station (you don't know this process, and it will never string to other radio stations by mistake). When AF finds another better and more stable frequency than the original signal, it will automatically search for other transmitting frequencies of the current radio station, It will automatically jump to the past (of course, the program is still the same)
in another case, you have been listening to radio Guangzhou, but the car has arrived in Shenzhen, and there is no signal at 100.8. At this time, the AF function of RDS will also search another transmission frequency of radio Guangzhou in Shenzhen, so that you can listen to the program without interruption
here is another powerful function of RDS radio system: TA function. According to the explanation on the Internet, RDS can transmit the station name, program type and program content to the radio for display. In fact, RDS radio can also automatically classify the program types of radio stations. General car audio RDS radio can store about 30 program categories, such as news, sports, entertainment and so on
when we are listening to the news of Shenzhen news consulting station, the car has arrived in Beijing, and the signal of Shenzhen radio station can not be transmitted in Beijing. What should we do? RDS radio system gives a compromise: turn on the TA function. When you are listening to a program and can't receive the signal, it will automatically search for the radio station of the same type of program you like to listen to, and the one with the best signal will be selected. In other words, in Beijing, you can't hear the news in Shenzhen. TA will automatically help you find a radio station that is also a news program for you to listen to, which feels good.
in addition, RDS radio station has a unique "traffic information" function in order to ensure the safety of the car's journey. In case of any major traffic information, such as road traffic jam, traffic accident, landslide, the radio will send special traffic information. This is your RDS radio, and the "TP" light will be on. No matter your stereo is listening to songs, playing DVD or playing games, it will forcibly stop all actions, and then insert and play traffic information Although it's a bit barbaric, you can cancel it after listening to it)
the last tip: generally RDS radio stations have time benchmark launch, but it will secretly help you to adjust the time of your radio. Oh, don't do it yourself, ha ha. Unfortunately, there is no RDS radio station in our country
but don't despair. It's said that a small number of professional radio stations in China are quietly experimenting with RDS functions. Moreover, if you are in Shenzhen or Zhuhai, which is adjacent to Hong Kong and Macao, you should be able to receive RDS from Hong Kong. This paper introces the frequencies of several RDS radio stations: 88.1 (thunder), 90.7 (commercial), 93.2 (Hong Kong one), 97.3 (Hong Kong four), 104.7
when Europeans invented RDS, it was mainly used for cars, or especially for "constantly moving receivers", so it's no fault for mobile phones to use RDS, It is a bold attempt. If your radio is just left at home to listen to, it is recommended not to buy one with RDS function, so as not to waste money.